package thread;

import javax.crypto.spec.PSource;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;

public class ThreadPoolDemo {
    public static void main(String[] args) {
        ExecutorService threadPool = Executors.newFixedThreadPool(2);
        for (int i = 0; i < 5; i++){
            Runnable r = new Runnable() {
                public void run() {
                    Thread t = Thread.currentThread();
                    System.out.println("正在执行任务！" + t);
                    try {
                        Thread.sleep(5000);
                    } catch (InterruptedException e) {
                        e.printStackTrace();
                    }
                    System.out.println("执行任务完毕" + t);
                }
            };
            threadPool.execute(r);
            System.out.println("将一个任务交给了线程！");
        }

//        threadPool.shutdown();
        threadPool.shutdownNow();
        System.out.println("线程关闭");


    }
}
